SLAU903 October   2023

 

  1.   1
  2.   Description
  3.   Get Started
  4.   Features
  5.   Applications
  6.   6
  7. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
  8. 2Hardware
    1. 2.1 Hardware Overview
    2. 2.2 AC-MB Settings
      1. 2.2.1 Audio Serial Interface Settings
        1. 2.2.1.1 USB Mode
        2. 2.2.1.2 Optical or Auxiliary Analog Audio Input Mode
        3. 2.2.1.3 External Audio Interface Mode
      2. 2.2.2 AC-MB Power Supply
    3. 2.3 TAx5x1xQ1EVM-K Hardware Settings
      1. 2.3.1 TAx5412-Q1 EVM Input Hardware Settings
        1. 2.3.1.1 Line Inputs
        2. 2.3.1.2 On-board Microphone Input
      2. 2.3.2 TAC541x-Q1 EVM Output Hardware Settings
    4. 2.4 Diagnostics Hardware Setup
      1. 2.4.1 Short to MICBIAS Setup
      2. 2.4.2 Short to VBAT Setup
      3. 2.4.3 Shorted Input Pins Setup
      4. 2.4.4 Short to GND Setup
    5. 2.5 GPIO1 Hardware Configurations
  9. 3Software
    1. 3.1 Software Description
    2. 3.2 PurePath Console 3 Installation
      1. 3.2.1 USB Audio Setup
    3. 3.3 TAx5x1x-Q1 EVM GUI
      1. 3.3.1 Software Overview
      2. 3.3.2 Configuration View
        1. 3.3.2.1 Device Config Tab
        2. 3.3.2.2 Record Config Tab
        3. 3.3.2.3 Playback Config Tab
        4. 3.3.2.4 Audio Serial Bus Tab
          1. 3.3.2.4.1 Configuring Primary Audio Serial Bus
          2. 3.3.2.4.2 Configuring Secondary Audio Serial Bus
          3. 3.3.2.4.3 Example Configuring I2S Interface
        5. 3.3.2.5 GPIO/Interrupts Tab
        6. 3.3.2.6 Advanced Tabs
          1. 3.3.2.6.1 Diagnostic Tab
          2. 3.3.2.6.2 Programmable Biquads Tab
          3. 3.3.2.6.3 Automatic Gain Control (AGC) Tab
          4. 3.3.2.6.4 Voice/Ultrasonic Auto Detection (VAD/UAD) Tab
          5. 3.3.2.6.5 Mixer Tab
          6. 3.3.2.6.6 Tone Generation Tab
          7. 3.3.2.6.7 Limiter Tab
        7. 3.3.2.7 End System Integration View
        8. 3.3.2.8 Register Map View
        9. 3.3.2.9 I2C Monitor View
    4. 3.4 Configuration Examples
    5. 3.5 System Overview
  10. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
      1. 4.3.1 TAC5412-Q1 EVM Bill of Materials
      2. 4.3.2 TAC5311-Q1 EVM Bill of Materials
      3. 4.3.3 TAA5412-Q1 EVM Bill of Materials
  11. 5Additional Information
    1. 5.1 Trademarks
  12. 6References

2.2.1 Audio Serial Interface Settings

The AC-MB provides the digital audio signals to the evaluation module from the universal serial bus (USB), optical jack, stereo audio jack, and external audio serial interface (ASI) header. Figure 3-2 shows a block diagram of the ASI routing on the AC-MB.

GUID-20230609-SS0I-GLQ9-FBG4-QD6F4WLTXPXD-low.pngFigure 2-2 AC-MB Audio Interface Block Diagram

Switch SW2 on the AC-MB selects the audio serial bus that interfaces with the PCM6xx0EVM. Next to switch SW2, the AC-MB has a quick reference table to identify the audio serial interface source options and switch settings. The AC-MB acts as the controller for the audio serial interface, with three different modes of operation: USB, optical or analog, or external ASI.

The serial interface clocks and data are provided from the USB interface. The sampling rate and format are determined by the USB audio class driver on the operating system. The default settings for the USB audio interface are 32-bit frame size, 48-kHz sampling rate, BCLK and FSYNC ratio is 256, and the format is time division multiplexing (TDM).